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SIGINTERRUPT(3P) POSIX Programmer's Manual SIGINTERRUPT(3P)
This manual page is part of the POSIX Programmer's Manual. The Linux
implementation of this interface may differ (consult the
corresponding Linux manual page for details of Linux behavior), or
the interface may not be implemented on Linux.
siginterrupt — allow signals to interrupt functions
#include <signal.h>
int siginterrupt(int sig, int flag);
The siginterrupt() function shall change the restart behavior when a
function is interrupted by the specified signal. The function
siginterrupt(sig, flag) has an effect as if implemented as:
int siginterrupt(int sig, int flag) {
int ret;
struct sigaction act;
(void) sigaction(sig, NULL, &act);
if (flag)
act.sa_flags &= ~SA_RESTART;
else
act.sa_flags |= SA_RESTART;
ret = sigaction(sig, &act, NULL);
return ret;
}
Upon successful completion, siginterrupt() shall return 0; otherwise,
−1 shall be returned and errno set to indicate the error.
The siginterrupt() function shall fail if:
EINVAL The sig argument is not a valid signal number.
The following sections are informative.
None.
The siginterrupt() function supports programs written to historical
system interfaces. Applications should use the sigaction() with the
SA_RESTART flag instead of the obsolescent siginterrupt() function.
None.
None.
Section 2.4, Signal Concepts, sigaction(3p)
The Base Definitions volume of POSIX.1‐2008, signal.h(0p)
Portions of this text are reprinted and reproduced in electronic form
from IEEE Std 1003.1, 2013 Edition, Standard for Information
Technology -- Portable Operating System Interface (POSIX), The Open
Group Base Specifications Issue 7, Copyright (C) 2013 by the
Institute of Electrical and Electronics Engineers, Inc and The Open
Group. (This is POSIX.1-2008 with the 2013 Technical Corrigendum 1
applied.) In the event of any discrepancy between this version and
the original IEEE and The Open Group Standard, the original IEEE and
The Open Group Standard is the referee document. The original
Standard can be obtained online at http://www.unix.org/online.html .
Any typographical or formatting errors that appear in this page are
most likely to have been introduced during the conversion of the
source files to man page format. To report such errors, see
https://www.kernel.org/doc/man-pages/reporting_bugs.html .
IEEE/The Open Group 2013 SIGINTERRUPT(3P)
Pages that refer to this page: signal.h(0p)